trust-tasks-rs 0.35.4

Reference Rust library for the Trust Tasks framework — transport-agnostic, JSON-based descriptions of verifiable work between parties.
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//! Generated by `trust-tasks-codegen` — do not edit by hand.
//!
//! Spec slug: `trust-task-next-step`. Version: `0.1`.
/// Why this specification version is deprecated (SPEC "Superseded and
/// Withdrawn Versions"), or `None` while it is current.
pub const DEPRECATION: Option<&str> = None;
#[allow(unused_imports)]
use serde::{Deserialize, Serialize};
/// Error types.
pub mod error {
    /// Error from a `TryFrom` or `FromStr` implementation.
    pub struct ConversionError(::std::borrow::Cow<'static, str>);
    impl ::std::error::Error for ConversionError {}
    impl ::std::fmt::Display for ConversionError {
        fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> Result<(), ::std::fmt::Error> {
            ::std::fmt::Display::fmt(&self.0, f)
        }
    }
    impl ::std::fmt::Debug for ConversionError {
        fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> Result<(), ::std::fmt::Error> {
            ::std::fmt::Debug::fmt(&self.0, f)
        }
    }
    impl From<&'static str> for ConversionError {
        fn from(value: &'static str) -> Self {
            Self(value.into())
        }
    }
    impl From<String> for ConversionError {
        fn from(value: String) -> Self {
            Self(value.into())
        }
    }
}
///Vendor-namespaced extension object per SPEC.md §4.5.1. Each immediate key MUST be a reverse-DNS namespace; structure under each namespace is opaque to the framework.
///
#[derive(::serde::Deserialize, ::serde::Serialize, Clone, Debug)]
#[serde(transparent)]
pub struct Ext(pub ::std::collections::HashMap<ExtKey, ::serde_json::Value>);
impl ::std::ops::Deref for Ext {
    type Target = ::std::collections::HashMap<ExtKey, ::serde_json::Value>;
    fn deref(&self) -> &::std::collections::HashMap<ExtKey, ::serde_json::Value> {
        &self.0
    }
}
impl ::std::convert::From<Ext> for ::std::collections::HashMap<ExtKey, ::serde_json::Value> {
    fn from(value: Ext) -> Self {
        value.0
    }
}
impl ::std::convert::From<::std::collections::HashMap<ExtKey, ::serde_json::Value>> for Ext {
    fn from(value: ::std::collections::HashMap<ExtKey, ::serde_json::Value>) -> Self {
        Self(value)
    }
}
///`ExtKey`
///
#[derive(::serde::Serialize, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[serde(transparent)]
pub struct ExtKey(::std::string::String);
impl ::std::ops::Deref for ExtKey {
    type Target = ::std::string::String;
    fn deref(&self) -> &::std::string::String {
        &self.0
    }
}
impl ::std::convert::From<ExtKey> for ::std::string::String {
    fn from(value: ExtKey) -> Self {
        value.0
    }
}
impl ::std::str::FromStr for ExtKey {
    type Err = self::error::ConversionError;
    fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        static PATTERN: ::std::sync::LazyLock<::regress::Regex> =
            ::std::sync::LazyLock::new(|| {
                ::regress::Regex::new("^[a-z][a-z0-9-]*(\\.[a-z0-9-]+)+$").unwrap()
            });
        if PATTERN.find(value).is_none() {
            return Err("doesn't match pattern \"^[a-z][a-z0-9-]*(\\.[a-z0-9-]+)+$\"".into());
        }
        Ok(Self(value.to_string()))
    }
}
impl ::std::convert::TryFrom<&str> for ExtKey {
    type Error = self::error::ConversionError;
    fn try_from(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<&::std::string::String> for ExtKey {
    type Error = self::error::ConversionError;
    fn try_from(
        value: &::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<::std::string::String> for ExtKey {
    type Error = self::error::ConversionError;
    fn try_from(
        value: ::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl<'de> ::serde::Deserialize<'de> for ExtKey {
    fn deserialize<D>(deserializer: D) -> ::std::result::Result<Self, D::Error>
    where
        D: ::serde::Deserializer<'de>,
    {
        ::std::string::String::deserialize(deserializer)?
            .parse()
            .map_err(|e: self::error::ConversionError| {
                <D::Error as ::serde::de::Error>::custom(e.to_string())
            })
    }
}
/**
The recipient-suggested continuation reserved at SPEC.md §8.6: the original task was understood, but cannot complete in isolation, and this names what the recipient party expects in order to proceed.

A next step is neither a success response nor a failure. The originating task is left open — a consumer that means 'no' returns a trust-task-error instead, and one that means 'done' returns the originating specification's #response variant.

This specification declares no response anchor: a producer answers a next step by issuing a document of the expected type, not by responding to this one.*/
///
#[derive(::serde::Deserialize, ::serde::Serialize, Clone, Debug)]
#[serde(deny_unknown_fields)]
#[non_exhaustive]
pub struct Payload {
    ///What happens once an expected task completes. `resubmit` (the default) means the expected task is a PREREQUISITE and the producer re-issues the originating request to continue — a new document with a fresh id and the same threadId, which SPEC §8.4 distinguishes from a retry, since a retry is bit-for-bit identical and is not what happens here; this matches the established pattern of task-consent/granted, where the requester re-submits once approval lands. `proceed` means the expected task IS the continuation and the originating request is not re-issued, as in an offer answered by a request.
    #[serde(default = "defaults::payload_continuation")]
    pub continuation: PayloadContinuation,
    ///The continuations the recipient will accept, in the producer's order of preference where the recipient has one. More than one entry means ALTERNATIVES — satisfying any single entry unblocks the exchange, never all of them. A recipient that needs several things done first names the one it wants next and issues a further next step afterwards; expressing a conjunction here would be a flow definition, which belongs to a ceremony rather than to a single response.
    pub expects: ::std::vec::Vec<PayloadExpectsItem>,
    #[serde(default, skip_serializing_if = "::std::option::Option::is_none")]
    pub ext: ::std::option::Option<Ext>,
    #[serde(
        rename = "inResponseTo",
        default,
        skip_serializing_if = "::std::option::Option::is_none"
    )]
    pub in_response_to: ::std::option::Option<PayloadInResponseTo>,
    ///Human-readable description of why the task cannot complete in isolation. Non-normative. Subject to the same restraint as an error message: it reaches a party that may not be entitled to learn why.
    #[serde(default, skip_serializing_if = "::std::option::Option::is_none")]
    pub message: ::std::option::Option<PayloadMessage>,
}
impl Payload {
    pub fn builder() -> builder::Payload {
        Default::default()
    }
}
///What happens once an expected task completes. `resubmit` (the default) means the expected task is a PREREQUISITE and the producer re-issues the originating request to continue — a new document with a fresh id and the same threadId, which SPEC §8.4 distinguishes from a retry, since a retry is bit-for-bit identical and is not what happens here; this matches the established pattern of task-consent/granted, where the requester re-submits once approval lands. `proceed` means the expected task IS the continuation and the originating request is not re-issued, as in an offer answered by a request.
///
#[derive(
    ::serde::Deserialize,
    ::serde::Serialize,
    Clone,
    Copy,
    Debug,
    Eq,
    Hash,
    Ord,
    PartialEq,
    PartialOrd,
)]
#[non_exhaustive]
pub enum PayloadContinuation {
    #[serde(rename = "resubmit")]
    Resubmit,
    #[serde(rename = "proceed")]
    Proceed,
}
impl ::std::fmt::Display for PayloadContinuation {
    fn fmt(&self, f: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
        match *self {
            Self::Resubmit => f.write_str("resubmit"),
            Self::Proceed => f.write_str("proceed"),
        }
    }
}
impl ::std::str::FromStr for PayloadContinuation {
    type Err = self::error::ConversionError;
    fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        match value {
            "resubmit" => Ok(Self::Resubmit),
            "proceed" => Ok(Self::Proceed),
            _ => Err("invalid value".into()),
        }
    }
}
impl ::std::convert::TryFrom<&str> for PayloadContinuation {
    type Error = self::error::ConversionError;
    fn try_from(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<&::std::string::String> for PayloadContinuation {
    type Error = self::error::ConversionError;
    fn try_from(
        value: &::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<::std::string::String> for PayloadContinuation {
    type Error = self::error::ConversionError;
    fn try_from(
        value: ::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::default::Default for PayloadContinuation {
    fn default() -> Self {
        PayloadContinuation::Resubmit
    }
}
///`PayloadExpectsItem`
///
#[derive(::serde::Deserialize, ::serde::Serialize, Clone, Debug)]
#[serde(deny_unknown_fields)]
#[non_exhaustive]
pub struct PayloadExpectsItem {
    ///Optional structured data the producer MAY use when composing the expected document — a challenge to echo, an identifier to quote, a presentation definition to satisfy. Its shape is governed by the specification named in typeUri, not by this one. A producer MUST NOT treat a hint as authoritative for any value it can determine itself.
    #[serde(default, skip_serializing_if = "::serde_json::Map::is_empty")]
    pub hint: ::serde_json::Map<::std::string::String, ::serde_json::Value>,
    ///Human-readable explanation of why this continuation is expected. Non-normative; intended for operator UI and logs.
    #[serde(default, skip_serializing_if = "::std::option::Option::is_none")]
    pub reason: ::std::option::Option<PayloadExpectsItemReason>,
    ///The Type URI of the Trust Task the recipient expects next, including any #request fragment. A suggestion only: it confers no authorization to perform that task, and the producer applies its own policy before acting (see the specification's Security & Privacy section).
    #[serde(rename = "typeUri")]
    pub type_uri: ::std::string::String,
}
impl PayloadExpectsItem {
    pub fn builder() -> builder::PayloadExpectsItem {
        Default::default()
    }
}
///Human-readable explanation of why this continuation is expected. Non-normative; intended for operator UI and logs.
///
#[derive(::serde::Serialize, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[serde(transparent)]
pub struct PayloadExpectsItemReason(::std::string::String);
impl ::std::ops::Deref for PayloadExpectsItemReason {
    type Target = ::std::string::String;
    fn deref(&self) -> &::std::string::String {
        &self.0
    }
}
impl ::std::convert::From<PayloadExpectsItemReason> for ::std::string::String {
    fn from(value: PayloadExpectsItemReason) -> Self {
        value.0
    }
}
impl ::std::str::FromStr for PayloadExpectsItemReason {
    type Err = self::error::ConversionError;
    fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        if value.chars().count() > 1024usize {
            return Err("longer than 1024 characters".into());
        }
        Ok(Self(value.to_string()))
    }
}
impl ::std::convert::TryFrom<&str> for PayloadExpectsItemReason {
    type Error = self::error::ConversionError;
    fn try_from(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<&::std::string::String> for PayloadExpectsItemReason {
    type Error = self::error::ConversionError;
    fn try_from(
        value: &::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<::std::string::String> for PayloadExpectsItemReason {
    type Error = self::error::ConversionError;
    fn try_from(
        value: ::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl<'de> ::serde::Deserialize<'de> for PayloadExpectsItemReason {
    fn deserialize<D>(deserializer: D) -> ::std::result::Result<Self, D::Error>
    where
        D: ::serde::Deserializer<'de>,
    {
        ::std::string::String::deserialize(deserializer)?
            .parse()
            .map_err(|e: self::error::ConversionError| {
                <D::Error as ::serde::de::Error>::custom(e.to_string())
            })
    }
}
///Identifies the Trust Task document this next step answers. SHOULD be populated, for the reason SPEC §8.2 gives for the identical member on an error response: threadId correlates the exchange only for a party that already saw the request, so a retained next step otherwise names neither the task it interrupted nor the instance.
///
#[derive(::serde::Deserialize, ::serde::Serialize, Clone, Debug)]
#[serde(deny_unknown_fields)]
#[non_exhaustive]
pub struct PayloadInResponseTo {
    ///The id of the specific document being answered (SPEC §4.3). Globally unique and never reused, so it names one instance where threadId names an exchange.
    #[serde(default, skip_serializing_if = "::std::option::Option::is_none")]
    pub id: ::std::option::Option<PayloadInResponseToId>,
    ///The Type URI of the document being answered, including any fragment it carried.
    #[serde(rename = "typeUri")]
    pub type_uri: ::std::string::String,
}
impl PayloadInResponseTo {
    pub fn builder() -> builder::PayloadInResponseTo {
        Default::default()
    }
}
///The id of the specific document being answered (SPEC §4.3). Globally unique and never reused, so it names one instance where threadId names an exchange.
///
#[derive(::serde::Serialize, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[serde(transparent)]
pub struct PayloadInResponseToId(::std::string::String);
impl ::std::ops::Deref for PayloadInResponseToId {
    type Target = ::std::string::String;
    fn deref(&self) -> &::std::string::String {
        &self.0
    }
}
impl ::std::convert::From<PayloadInResponseToId> for ::std::string::String {
    fn from(value: PayloadInResponseToId) -> Self {
        value.0
    }
}
impl ::std::str::FromStr for PayloadInResponseToId {
    type Err = self::error::ConversionError;
    fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        if value.chars().count() < 1usize {
            return Err("shorter than 1 characters".into());
        }
        Ok(Self(value.to_string()))
    }
}
impl ::std::convert::TryFrom<&str> for PayloadInResponseToId {
    type Error = self::error::ConversionError;
    fn try_from(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<&::std::string::String> for PayloadInResponseToId {
    type Error = self::error::ConversionError;
    fn try_from(
        value: &::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<::std::string::String> for PayloadInResponseToId {
    type Error = self::error::ConversionError;
    fn try_from(
        value: ::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl<'de> ::serde::Deserialize<'de> for PayloadInResponseToId {
    fn deserialize<D>(deserializer: D) -> ::std::result::Result<Self, D::Error>
    where
        D: ::serde::Deserializer<'de>,
    {
        ::std::string::String::deserialize(deserializer)?
            .parse()
            .map_err(|e: self::error::ConversionError| {
                <D::Error as ::serde::de::Error>::custom(e.to_string())
            })
    }
}
///Human-readable description of why the task cannot complete in isolation. Non-normative. Subject to the same restraint as an error message: it reaches a party that may not be entitled to learn why.
///
#[derive(::serde::Serialize, Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[serde(transparent)]
pub struct PayloadMessage(::std::string::String);
impl ::std::ops::Deref for PayloadMessage {
    type Target = ::std::string::String;
    fn deref(&self) -> &::std::string::String {
        &self.0
    }
}
impl ::std::convert::From<PayloadMessage> for ::std::string::String {
    fn from(value: PayloadMessage) -> Self {
        value.0
    }
}
impl ::std::str::FromStr for PayloadMessage {
    type Err = self::error::ConversionError;
    fn from_str(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        if value.chars().count() > 1024usize {
            return Err("longer than 1024 characters".into());
        }
        Ok(Self(value.to_string()))
    }
}
impl ::std::convert::TryFrom<&str> for PayloadMessage {
    type Error = self::error::ConversionError;
    fn try_from(value: &str) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<&::std::string::String> for PayloadMessage {
    type Error = self::error::ConversionError;
    fn try_from(
        value: &::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl ::std::convert::TryFrom<::std::string::String> for PayloadMessage {
    type Error = self::error::ConversionError;
    fn try_from(
        value: ::std::string::String,
    ) -> ::std::result::Result<Self, self::error::ConversionError> {
        value.parse()
    }
}
impl<'de> ::serde::Deserialize<'de> for PayloadMessage {
    fn deserialize<D>(deserializer: D) -> ::std::result::Result<Self, D::Error>
    where
        D: ::serde::Deserializer<'de>,
    {
        ::std::string::String::deserialize(deserializer)?
            .parse()
            .map_err(|e: self::error::ConversionError| {
                <D::Error as ::serde::de::Error>::custom(e.to_string())
            })
    }
}
/// Types for composing complex structures.
pub mod builder {
    #[derive(Clone, Debug)]
    pub struct Payload {
        continuation: ::std::result::Result<super::PayloadContinuation, ::std::string::String>,
        expects: ::std::result::Result<
            ::std::vec::Vec<super::PayloadExpectsItem>,
            ::std::string::String,
        >,
        ext: ::std::result::Result<::std::option::Option<super::Ext>, ::std::string::String>,
        in_response_to: ::std::result::Result<
            ::std::option::Option<super::PayloadInResponseTo>,
            ::std::string::String,
        >,
        message: ::std::result::Result<
            ::std::option::Option<super::PayloadMessage>,
            ::std::string::String,
        >,
    }
    impl ::std::default::Default for Payload {
        fn default() -> Self {
            Self {
                continuation: Ok(super::defaults::payload_continuation()),
                expects: Err("no value supplied for expects".to_string()),
                ext: Ok(Default::default()),
                in_response_to: Ok(Default::default()),
                message: Ok(Default::default()),
            }
        }
    }
    impl Payload {
        pub fn continuation<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<super::PayloadContinuation>,
            T::Error: ::std::fmt::Display,
        {
            self.continuation = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for continuation: {e}"));
            self
        }
        pub fn expects<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::vec::Vec<super::PayloadExpectsItem>>,
            T::Error: ::std::fmt::Display,
        {
            self.expects = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for expects: {e}"));
            self
        }
        pub fn ext<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::option::Option<super::Ext>>,
            T::Error: ::std::fmt::Display,
        {
            self.ext = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for ext: {e}"));
            self
        }
        pub fn in_response_to<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::option::Option<super::PayloadInResponseTo>>,
            T::Error: ::std::fmt::Display,
        {
            self.in_response_to = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for in_response_to: {e}"));
            self
        }
        pub fn message<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::option::Option<super::PayloadMessage>>,
            T::Error: ::std::fmt::Display,
        {
            self.message = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for message: {e}"));
            self
        }
    }
    impl ::std::convert::TryFrom<Payload> for super::Payload {
        type Error = super::error::ConversionError;
        fn try_from(value: Payload) -> ::std::result::Result<Self, super::error::ConversionError> {
            Ok(Self {
                continuation: value.continuation?,
                expects: value.expects?,
                ext: value.ext?,
                in_response_to: value.in_response_to?,
                message: value.message?,
            })
        }
    }
    impl ::std::convert::From<super::Payload> for Payload {
        fn from(value: super::Payload) -> Self {
            Self {
                continuation: Ok(value.continuation),
                expects: Ok(value.expects),
                ext: Ok(value.ext),
                in_response_to: Ok(value.in_response_to),
                message: Ok(value.message),
            }
        }
    }
    #[derive(Clone, Debug)]
    pub struct PayloadExpectsItem {
        hint: ::std::result::Result<
            ::serde_json::Map<::std::string::String, ::serde_json::Value>,
            ::std::string::String,
        >,
        reason: ::std::result::Result<
            ::std::option::Option<super::PayloadExpectsItemReason>,
            ::std::string::String,
        >,
        type_uri: ::std::result::Result<::std::string::String, ::std::string::String>,
    }
    impl ::std::default::Default for PayloadExpectsItem {
        fn default() -> Self {
            Self {
                hint: Ok(Default::default()),
                reason: Ok(Default::default()),
                type_uri: Err("no value supplied for type_uri".to_string()),
            }
        }
    }
    impl PayloadExpectsItem {
        pub fn hint<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<
                ::serde_json::Map<::std::string::String, ::serde_json::Value>,
            >,
            T::Error: ::std::fmt::Display,
        {
            self.hint = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for hint: {e}"));
            self
        }
        pub fn reason<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::option::Option<super::PayloadExpectsItemReason>>,
            T::Error: ::std::fmt::Display,
        {
            self.reason = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for reason: {e}"));
            self
        }
        pub fn type_uri<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::string::String>,
            T::Error: ::std::fmt::Display,
        {
            self.type_uri = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for type_uri: {e}"));
            self
        }
    }
    impl ::std::convert::TryFrom<PayloadExpectsItem> for super::PayloadExpectsItem {
        type Error = super::error::ConversionError;
        fn try_from(
            value: PayloadExpectsItem,
        ) -> ::std::result::Result<Self, super::error::ConversionError> {
            Ok(Self {
                hint: value.hint?,
                reason: value.reason?,
                type_uri: value.type_uri?,
            })
        }
    }
    impl ::std::convert::From<super::PayloadExpectsItem> for PayloadExpectsItem {
        fn from(value: super::PayloadExpectsItem) -> Self {
            Self {
                hint: Ok(value.hint),
                reason: Ok(value.reason),
                type_uri: Ok(value.type_uri),
            }
        }
    }
    #[derive(Clone, Debug)]
    pub struct PayloadInResponseTo {
        id: ::std::result::Result<
            ::std::option::Option<super::PayloadInResponseToId>,
            ::std::string::String,
        >,
        type_uri: ::std::result::Result<::std::string::String, ::std::string::String>,
    }
    impl ::std::default::Default for PayloadInResponseTo {
        fn default() -> Self {
            Self {
                id: Ok(Default::default()),
                type_uri: Err("no value supplied for type_uri".to_string()),
            }
        }
    }
    impl PayloadInResponseTo {
        pub fn id<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::option::Option<super::PayloadInResponseToId>>,
            T::Error: ::std::fmt::Display,
        {
            self.id = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for id: {e}"));
            self
        }
        pub fn type_uri<T>(mut self, value: T) -> Self
        where
            T: ::std::convert::TryInto<::std::string::String>,
            T::Error: ::std::fmt::Display,
        {
            self.type_uri = value
                .try_into()
                .map_err(|e| format!("error converting supplied value for type_uri: {e}"));
            self
        }
    }
    impl ::std::convert::TryFrom<PayloadInResponseTo> for super::PayloadInResponseTo {
        type Error = super::error::ConversionError;
        fn try_from(
            value: PayloadInResponseTo,
        ) -> ::std::result::Result<Self, super::error::ConversionError> {
            Ok(Self {
                id: value.id?,
                type_uri: value.type_uri?,
            })
        }
    }
    impl ::std::convert::From<super::PayloadInResponseTo> for PayloadInResponseTo {
        fn from(value: super::PayloadInResponseTo) -> Self {
            Self {
                id: Ok(value.id),
                type_uri: Ok(value.type_uri),
            }
        }
    }
}
/// Generation of default values for serde.
pub mod defaults {
    pub(super) fn payload_continuation() -> super::PayloadContinuation {
        super::PayloadContinuation::Resubmit
    }
}
impl crate::Payload for Payload {
    const TYPE_URI: &'static str = "https://trusttasks.org/spec/trust-task-next-step/0.1";
    const IS_RECIPIENT_REQUIRED: bool = true;
    const PAYLOAD_SCHEMA: Option<&'static str> = Some(
        "{\"$defs\":{\"Ext\":{\"additionalProperties\":true,\"description\":\"Vendor-namespaced extension object per SPEC.md §4.5.1. Each immediate key MUST be a reverse-DNS namespace; structure under each namespace is opaque to the framework.\",\"minProperties\":1,\"propertyNames\":{\"pattern\":\"^[a-z][a-z0-9-]*(\\\\.[a-z0-9-]+)+$\"},\"title\":\"Ext\",\"type\":\"object\"}},\"$id\":\"https://trusttasks.org/spec/trust-task-next-step/0.1\",\"$schema\":\"https://json-schema.org/draft/2020-12/schema\",\"additionalProperties\":false,\"description\":\"The recipient-suggested continuation reserved at SPEC.md §8.6: the original task was understood, but cannot complete in isolation, and this names what the recipient party expects in order to proceed.\\n\\nA next step is neither a success response nor a failure. The originating task is left open — a consumer that means 'no' returns a trust-task-error instead, and one that means 'done' returns the originating specification's #response variant.\\n\\nThis specification declares no response anchor: a producer answers a next step by issuing a document of the expected type, not by responding to this one.\",\"properties\":{\"continuation\":{\"$comment\":\"Two values rather than a boolean, because 'resubmit: false' reads as a negation of something the reader has to reconstruct.\",\"default\":\"resubmit\",\"description\":\"What happens once an expected task completes. `resubmit` (the default) means the expected task is a PREREQUISITE and the producer re-issues the originating request to continue — a new document with a fresh id and the same threadId, which SPEC §8.4 distinguishes from a retry, since a retry is bit-for-bit identical and is not what happens here; this matches the established pattern of task-consent/granted, where the requester re-submits once approval lands. `proceed` means the expected task IS the continuation and the originating request is not re-issued, as in an offer answered by a request.\",\"enum\":[\"resubmit\",\"proceed\"]},\"expects\":{\"description\":\"The continuations the recipient will accept, in the producer's order of preference where the recipient has one. More than one entry means ALTERNATIVES — satisfying any single entry unblocks the exchange, never all of them. A recipient that needs several things done first names the one it wants next and issues a further next step afterwards; expressing a conjunction here would be a flow definition, which belongs to a ceremony rather than to a single response.\",\"items\":{\"additionalProperties\":false,\"properties\":{\"hint\":{\"description\":\"Optional structured data the producer MAY use when composing the expected document — a challenge to echo, an identifier to quote, a presentation definition to satisfy. Its shape is governed by the specification named in typeUri, not by this one. A producer MUST NOT treat a hint as authoritative for any value it can determine itself.\",\"type\":\"object\"},\"reason\":{\"description\":\"Human-readable explanation of why this continuation is expected. Non-normative; intended for operator UI and logs.\",\"maxLength\":1024,\"type\":\"string\"},\"typeUri\":{\"description\":\"The Type URI of the Trust Task the recipient expects next, including any #request fragment. A suggestion only: it confers no authorization to perform that task, and the producer applies its own policy before acting (see the specification's Security & Privacy section).\",\"format\":\"uri\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"typeUri\"],\"type\":\"object\"},\"minItems\":1,\"type\":\"array\"},\"ext\":{\"$ref\":\"#/$defs/Ext\"},\"inResponseTo\":{\"additionalProperties\":false,\"description\":\"Identifies the Trust Task document this next step answers. SHOULD be populated, for the reason SPEC §8.2 gives for the identical member on an error response: threadId correlates the exchange only for a party that already saw the request, so a retained next step otherwise names neither the task it interrupted nor the instance.\",\"properties\":{\"id\":{\"description\":\"The id of the specific document being answered (SPEC §4.3). Globally unique and never reused, so it names one instance where threadId names an exchange.\",\"minLength\":1,\"type\":\"string\"},\"typeUri\":{\"description\":\"The Type URI of the document being answered, including any fragment it carried.\",\"format\":\"uri\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"typeUri\"],\"type\":\"object\"},\"message\":{\"description\":\"Human-readable description of why the task cannot complete in isolation. Non-normative. Subject to the same restraint as an error message: it reaches a party that may not be entitled to learn why.\",\"maxLength\":1024,\"type\":\"string\"}},\"required\":[\"expects\"],\"title\":\"Trust Task Next Step — payload\",\"type\":\"object\"}\n",
    );
}
/// The earlier `MAJOR.MINOR` of this slug that this version declares it
/// extends (front matter `extends`, SPEC §5.2 "Declared extension"), or
/// `None`. Only the direct declaration; walk a chain with
/// [`crate::extension::extends_for`].
pub const EXTENDS: Option<&str> = None;
/// The extended error codes this specification declares (SPEC §7.3 item 9,
/// §8.5), in declaration order. Empty when it declares none.
pub const ERROR_CODES: &[crate::DeclaredErrorCode] = &[];